Age and reproduction of the southern king croaker Menticirrhus americanus in subtropical South Atlantic environments

ABSTRACT Menticirrhus americanus were sampled (n = 393) from two beaches (P1 is an estuarine beach near the mouth of the Paranaguá Estuarine Complex, and P2 is a beach adjacent to the Paranaguá Estuarine Complex) in the subtropical region of the western South Atlantic waters between August 2015 and...

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Autores principales: Carvalho,Barbara Maichak de, Volpedo,Alejandra Vanina, Fávaro,Luís Fernando
Lenguaje:English
Publicado: Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2021
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2021000200242
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spelling oai:scielo:S0718-560X20210002002422021-06-10Age and reproduction of the southern king croaker Menticirrhus americanus in subtropical South Atlantic environmentsCarvalho,Barbara Maichak deVolpedo,Alejandra VaninaFávaro,Luís Fernando Menticirrhus americanus estuary sexual maturity gill fishing Sciaenidae ABSTRACT Menticirrhus americanus were sampled (n = 393) from two beaches (P1 is an estuarine beach near the mouth of the Paranaguá Estuarine Complex, and P2 is a beach adjacent to the Paranaguá Estuarine Complex) in the subtropical region of the western South Atlantic waters between August 2015 and June 2016. This study aimed to identify the spawning season and the age structure for M. americanus using two sampling methods. For sampling at the P1 beach, seine, line, and pole were used, while samples from the P2 beach were obtained from the artisanal fishers. Females were numerically dominant in all sampling months at both sites except for February when the males became dominant. The species exhibited a protected reproductive season with multiple spawning peaks between August and December. Males and females were captured at all gonadal development stages and ages between 1 and 6 from both sites. At first maturity, the length of the females was 16.3 cm, and the mean age at first maturity was 1.3 years. Individuals aged between 1 and 3 years were dominant (68%). The results suggested that young and adults of the M. americanus use the same habitats throughout their ontogeny.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.49 n.2 20212021-05-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2021000200242en10.3856/vol49-issue2-fulltext-2602
institution Scielo Chile
collection Scielo Chile
language English
topic Menticirrhus americanus
estuary
sexual maturity
gill fishing
Sciaenidae
spellingShingle Menticirrhus americanus
estuary
sexual maturity
gill fishing
Sciaenidae
Carvalho,Barbara Maichak de
Volpedo,Alejandra Vanina
Fávaro,Luís Fernando
Age and reproduction of the southern king croaker Menticirrhus americanus in subtropical South Atlantic environments
description ABSTRACT Menticirrhus americanus were sampled (n = 393) from two beaches (P1 is an estuarine beach near the mouth of the Paranaguá Estuarine Complex, and P2 is a beach adjacent to the Paranaguá Estuarine Complex) in the subtropical region of the western South Atlantic waters between August 2015 and June 2016. This study aimed to identify the spawning season and the age structure for M. americanus using two sampling methods. For sampling at the P1 beach, seine, line, and pole were used, while samples from the P2 beach were obtained from the artisanal fishers. Females were numerically dominant in all sampling months at both sites except for February when the males became dominant. The species exhibited a protected reproductive season with multiple spawning peaks between August and December. Males and females were captured at all gonadal development stages and ages between 1 and 6 from both sites. At first maturity, the length of the females was 16.3 cm, and the mean age at first maturity was 1.3 years. Individuals aged between 1 and 3 years were dominant (68%). The results suggested that young and adults of the M. americanus use the same habitats throughout their ontogeny.
author Carvalho,Barbara Maichak de
Volpedo,Alejandra Vanina
Fávaro,Luís Fernando
author_facet Carvalho,Barbara Maichak de
Volpedo,Alejandra Vanina
Fávaro,Luís Fernando
author_sort Carvalho,Barbara Maichak de
title Age and reproduction of the southern king croaker Menticirrhus americanus in subtropical South Atlantic environments
title_short Age and reproduction of the southern king croaker Menticirrhus americanus in subtropical South Atlantic environments
title_full Age and reproduction of the southern king croaker Menticirrhus americanus in subtropical South Atlantic environments
title_fullStr Age and reproduction of the southern king croaker Menticirrhus americanus in subtropical South Atlantic environments
title_full_unstemmed Age and reproduction of the southern king croaker Menticirrhus americanus in subtropical South Atlantic environments
title_sort age and reproduction of the southern king croaker menticirrhus americanus in subtropical south atlantic environments
publisher Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate 2021
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2021000200242
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AT volpedoalejandravanina ageandreproductionofthesouthernkingcroakermenticirrhusamericanusinsubtropicalsouthatlanticenvironments
AT favaroluisfernando ageandreproductionofthesouthernkingcroakermenticirrhusamericanusinsubtropicalsouthatlanticenvironments
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